<template>
    <div class='login_container'>
        <div class="login_box">
            <!--头像区域 -->
            <div class="avatar_box">
                <img src="../assets/logo.png" alt="">
            </div>
            <!--登录表单区域-->
            <el-form ref="loginFromRef" :model="loginFrom" :rules="loginFromRules" label-width="0px" class="login_form">
                <!--用户名-->
                <el-form-item prop="username" >
                    <el-input v-model="loginFrom.username" prefix-icon="iconfont icon-user"></el-input>
                </el-form-item>
                <!--密码-->
                <el-form-item prop="password">
                    <el-input v-model="loginFrom.password" prefix-icon="iconfont icon-3702mima" type="password"></el-input>
                </el-form-item>
                <!--按钮-->
                <el-form-item class="btns">
                    <el-button type="primary" @click="login">登录</el-button>
                    <el-button type="info" @click="resetLoginForm">重置</el-button>
                </el-form-item>
            </el-form>
            
        </div>
    </div>
</template>
    
<script>
export default {
    data(){
        return{
            //这是登录表单的数据绑定对象
            loginFrom:{
                username:'admin',
                password:'123456'
            },
            //这是表单的验证规则对象
            loginFromRules:{
                //验证用户名是否合法
                username:[
                     { required: true, message: '请输入登录名称', trigger: 'blur' },
                     { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
                ],
                //验证密码是否合法
                password:[
                     { required: true, message: '请输入密码', trigger: 'blur' },
                     { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
                ],
            }
        }
    },
    methods:{
        //点击重置按钮，重置登录表单
        resetLoginForm(){
            // console.log(this)
            this.$refs.loginFromRef.resetFields();
        },
        login(){
            this.$refs.loginFromRef.validate(async valid=>{
                if(!valid) return;
                const {data:res}=await this.$http.post('login',this.loginFrom)
                // console.log(res);
                if(res.meta.status !== 200){
                    return this.$message.error("登录失败！");
                }else{
                    this.$message.success('登录成功');
                    window.sessionStorage.setItem('token',res.data.token);
                    this.$router.push("/home");
                }
            });
        }
    }
}
</script>

<style  scoped>
.login_container{
    background-color: #2b4b6b;
    height: 100%;
}
.login_box{
    width: 400px;
    height: 300px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform:translate(-50%,-50%);

}
.avatar_box{
    height: 130px;
    width: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow:0 0 10px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50% ,-50%);
    background-color: #fff;
}
.avatar_box img{
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: #eee;
}
.login_form{
    position:absolute;
    bottom: 0px;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
}
.btns{
    display: flex;
    justify-content: flex-end;
}        
</style>